4921562844 has 72 divisors (see below), whose sum is σ = 13938423408. Its totient is φ = 1451070720.

The previous prime is 4921562843. The next prime is 4921562861. The reversal of 4921562844 is 4482651294.

It is a happy number.

4921562844 is a `hidden beast` number, since 4 + 9 + 2 + 1 + 562 + 84 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 4921562844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4921562843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153297 + ... + 182600.

It is an arithmetic number, because the mean of its divisors is an integer number (193589214).

Almost surely, 2^4921562844 is an apocalyptic number.

4921562844 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4921562844 is an abundant number, since it is smaller than the sum of its proper divisors (9016860564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4921562844 is a wasteful number, since it uses less digits than its factorization.

4921562844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335955 (or 335950 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 4921562844 is about 70153.8512413966. The cubic root of 4921562844 is about 1700.9870673700.

It can be divided in two parts, 4921 and 562844, that added together give a palindrome (567765).

The spelling of 4921562844 in words is "four billion, nine hundred twenty-one million, five hundred sixty-two thousand, eight hundred forty-four".